Professor Delaney McPhearson's life is turned upside down when her best friend, archaeologist Drew Masters, is found dead. Before she can deal with the heartbreaking loss, she is viciously attacked in her home by a man with inhuman fighting abilities. Former Navy SEAL and head of security for a global think tank, Jake Rogan drops everything when he hears his foster brother, Tom Jeffries, has gone missing. There seem to be no clues, no information about his whereabouts. He has just vanished. But Jake won't rest until he finds him.

The greatest devastation in history. A secret that will alter humanity forever. Today, the true fight for survival begins. Deep within the remnants of the United States, Lyla Richards oversees a camp of 200 survivors. In a world where living is an everyday struggle and only through banding together can people survive, the arrival of the Unwelcome only made her job harder. Riley Quinn and Miles Jones have been raised by Lyla for the last five years. They are also one of the cursed: the children between the ages of 13 and 18 whom the Unwelcome kill on sight.

Luke Daniels is in London, between assignments with the Magellan Billet, when he receives a frantic call from an old friend. Jillian Stein is in trouble. She made a mistake and now her life may be in danger. She needs Luke’s help. Immediately. Racing to Belgium Luke quickly finds that she was right. A shadow team of highly-trained operatives are there on the hunt. Intervening, he finds himself embroiled in a war between two determined sides—one seeking the truth, the other trying to escape the past—a war that has already claimed one life and is about to claim more.

When Captain Kyle Mercer of the Army’s elite Delta Force disappeared from his post in Afghanistan, a video released by his Taliban captors made international headlines. But circumstances were murky: Did Mercer desert before he was captured? Then a second video sent to Mercer’s Army commanders leaves no doubt: The trained assassin and keeper of classified Army intelligence has disappeared.

Cotton Malone, one-time top operative for the U.S. Justice Department, is enjoying his quiet new life as an antiquarian book dealer in Copenhagen when an unexpected call to action reawakens his hair-trigger instincts—and plunges him back into the cloak-and-dagger world he thought he’d left behind.

With the help of a powerful computer system, Alison Shaw and her team are preparing to translate the first two-way conversation with the planet's second smartest species. But the team discovers much more from their dolphins than they ever expected when a secret object is revealed on the ocean floor. One that was never supposed to be found.

Kurt Austin and his crew are back to slake their thirst for action as they attempt to drown an eco-extortionist's plan to control the world's freshwater supply. From deep within the Venezuelan rain forest emanates the legend of a white goddess and a mysterious tribe with startling technical accomplishments. Few believe the tribe exists, and even fewer suspect its deity can change the course of history.

Harry Fox hunts artifacts for the Italian mob. When a forgotten manuscript suggests Great Britain's most famous king may not be fiction, Harry plunges headlong on a dangerous path to uncover the truth. Little does he know a shadowy alliance with ties to three of mankind's most powerful organizations follows his every move, desperate to stop him before he can uncover the truth behind the legend. Surrounded by enemies, Harry barrels across the globe and discovers the myth of King Arthur is far more real than anyone ever imagined. Can Harry survive to reveal the true story?

Get ready to experience two more origin stories in the Backyard Starship universe.

The Ghent Altarpiece is the most violated work of art in the world. Thirteen times it has been vandalized, dismantled, or stolen. Why? What secrets does it hold? Enter UNESCO investigator, Nicholas Lee, who works for the United Nations’ Cultural Liaison and Investigative Office (CLIO). Nick’s job is to protect the world’s cultural artifacts—anything and everything from countless lesser-known objects to national treasures. When Nick travels to Belgium for a visit with a woman from his past, he unwittingly stumbles on the trail of a legendary panel from the Ghent Altarpiece.

Commander David Bryce is scheduled to lead a routine re-supply run for the Orbital Development Group (ORB) to the fledgling colony on Mars. Without warning, he’s taken away by government agents and told the mission parameters have changed. They’ve discovered something. And it’s drifting closer to Earth. Atlas Donovan tirelessly hunts for an artifact, and tracks the piece to Lake Como, Italy. After the recent news from ORB, Atlas is more drawn to the trail than ever.

Just days before a massive exhibition opens at the popular New York Museum of Natural History, visitors are being savagely murdered in the museum's dark hallways and secret rooms. Autopsies indicate that the killer cannot be human.... But the museum's directors plan to go ahead with a big bash to celebrate the new exhibition, in spite of the murders.

Honorably discharged from the Army after an explosion nearly killed her, former military psychiatrist Brooke Adams has set up shop to help others - but her days of helping military personnel are over. She's got her own battles to fight from her time overseas, and she's not equipped to take on more. Former Army Special Ops Sergeant First Class Asher James could handle anything war sent his way - terrorists, bombs, bullets. The only thing that scares him now is sleep. Finally convinced that he needs help, Asher makes an appointment with a counselor.

Fully armed and with all hands onboard, the nuclear submarine Starbuck sailed into the calm Pacific Ocean for sea trials - and vanished. No wreckage, no signals, no survivors: nothing...until ace maritime troubleshooter Dirk Pitt finds a single chilling clue in the shark-torn surf off Hawaii - the log of the Starbuck. 'Do not search for us, it can only end in vain....' A crazed journal of madness and death is all that remains.

The wall just didn’t look right. Alex has been trying to cope. Life after his deployment had been rough. His ex-wife thought he needed to stop disappointing their daughter. She was right. He would try harder. With six hours before his little girl’s fourth birthday party, he saw the anomaly. One wall was too short. Plenty of time to tear out a panel and look behind it. He found a brick wall. His house wasn’t made of brick. Behind that was another just like the first. He still had time. When the second wall came down, Alex stood and stared at the shining doorway.